Hello,
We wish to control an axis using servo motors. How do you determine how much resolution you need on the encoder. For example, if we wanted a position accuracy of 0.1 arcseconds, how may counts per arcseconds is required by a servo system (standard PID servo controller)?
0.1 arcseconds = 10 counts / arcseconds. I sure you would like to over sample this with the encoder, but by how much: 2x, 5x, 10x, ??.Is there a rule for servo system? I tried searching but couldn't find any references.
Thanks, Tony